Method of making strip shingles



0. K. OUTIVIAN.

METHOD 0F MAKING STRIP SHINGLES.

APPLICATION FILED SEPT. I4, 1921.

Patented Aug. 22, 1922.

'I .Illl

UNITED STATES PATENT OFFICE'.

ORR K. OUTMAN, OF RICHMOND, CALIFORNIA, ASSIGNOR TO CERTAIN-TEED PRODUCTS' CORPORATION, OF ST. LOUIS, MISSOURI, CORPORATION OF MARYLAND.

METHOD OF MAKING STRIP SHINGIIES.

Specification of Letters Patent. PatentedV Aug. 22, 1922.

Application led September 14, 1921'. Serial No. 500,671.

T 0 all whom t may camera:

Be it known that I, ORR K. OUTMAN, a citizen of the United States of America, and a resident of Richmond, in the county of Contra Cost-a and State of California, have invented certain new and useful Improvements in Methods of Making Strip Shingles, of which the following is a full, clear, and eXact description, reference Vbeing had to the accompan ing drawings, forming a part of.

. tween the channels, then removing the loose granular material from the channels, and cutting the sheets transversely of the channels to form the strip shingles; The channels can be very easily formed in the soft adhesive material before the granular material is deposited thereon, and although some of this granular material will enter the channels, it will not be securely embedded therein and it can be very easily removed from the sheet. The product has channels imitating spaces between shingles and the adhesive material between these channels is coated with granular material.

Fig. I is a `diagrammatical view of an apparatus adapted for use in carrying out the new method. Y

Fig. II is a top view of the apparatus.

Fig. III is an enlarged detail View showing the roofing sheet with a coating of adhesive material thereon, and one of the pressure members'whereby the adhesive material is channeled. l 1

To illustrate the invention I have shown a long sheet of roofing material A which may be made of felt., or any other suitable` fibrous material. This sheet is supported, guided and fed by a number of constantly rotating rolls, and it moves in the directions indicated by arrows in Fig. I.

A receptacle 1 contains a suitable adhesive weather proof material, such ...as asphalt,` in

the form of a thick viscous liquid. Thel sheet A passes between rolls 2 and 3 at the receptacle 1, the lower roll 3 being in contact with the body of adhesive material so as to deliver this material to the sheet A. The sheet is thus provided with a thick coatlng of adhesive material B, as shownl by Fi III.

he sheet with its adhesive coating passes to a rotating pressure roll 4, where a return bend is formed in the sheet. Adjacent to the roll 4, pressure members 5 engage the coated face of the sheet to form longitudinal channels 6 in the adhesive coating. These pressure members are separated from each other as shown by Fig. II, and they have smooth curved faces which engage the coating to form the longitudinal channels 6 at separate points in the coating.

When the apparatus is in operation, the

pressure members 5 are practically stationary, and they are forced toward the roll 4 to firmly engage the adhesive coating. V designates a horizontal rod to which the pressure members 5 are secured, the ends of,

said rod being mounted in arms 8 pivotally supported at 9 and provided with springs 10 which cooperate with arms 8 and the rod 7 to force the pressure members onto the adhesive coating. The supporting rod 7 may havethreaded ends (Fi II) which pass through the arms 8, an nuts 11 on these ends can be adjusted to impart a longitudinal adjustment to the rod 7 which supports the pressure members.

While the channels are being formed in the 'adhesive coating, portions of the soft adhesive material are displaced to opposite sides of each pressure member, so as to form ridges l2 at opposite sides ofthe channels, as shown in Fig. III. Instead of removing all of the adhesive material at the channels, the smooth pressure members 5 leave a thin coatin of this weather proof material at the base o .each channel, as shown in Fig. III, and this fine coating is firmly pressed onto the face of the traveling sheet. Therefore, the entire top face of the channeled sheet is provided with a weather proof coating, an excess of this weather proof material being provided between the channels to receive the granular material which is embedded into the thick portions o f the adhesive material, as will bepresentl described.

The channeled s eet travels over the roll as crushed slate or other suitable mineral.

material. rEhe receptacle 13 is open at the bottom for the discharge of a constant shower of granular material onto the surface of the adhesive material. This granular material preferably covers the entire exposed surface of the adhesive material, includingthe relatively thin layers of this adhesive material in the channels. rlhe sheet coated with adhesive and granular material then passes between pressure rolls 14C and 15 which embed the granular material on the adhesive coating between the channels. 'Howeven the granular material in theV channels is not embedded in the adhesive material. rThe traveling sheet passes under and then over the pressure roll 15 and at the top of this roll, the free granular material in the channels drops onto said roll and returns to the receptacle 13 which lies adja cent to this roll.

The coated sheet continuesin motion, preferably for a considerable distance to provide for the drying ofthe adhesive, and it is guided by rolls 16 and 17 to the table 18 (Fig. 1) .and at this point, a rotary shaft-19 is provided with circular brushes 20 which extend into the channels 6 so as to effectively remove any particles of the granular material that have failed to drop by gravityfrom the channels. However, the loose granular material in the channels will readily fall from the sheet at the top of roll 15 so the brushes 2O simply remove a small percentage of this material to very effectively clean the channels, thereby clearly exposing the black asphalt, or the like, at the channels.

After the rooting sheet'has been treated in this manner, it is cut transversely of the channels 6 to form the strip shingles A shownin Figs. l and 1l.

Strip shingles made in accordance with this simple method are strong and durable. They are not very materially weakened at the channels, and the entire top surface of the roofing sheet, including the channels 6, is coated with the protective asphalt, or the like.` The contrasting color of the coating exposed in the channels forms clearly deiined lines whereby the`strip is divided into a number of shingle-imitating elements.

The channels can be very easily formed by merely pressin n the soft asphalt as herein pointed out, be ore the granular material is applied thereto, and by forming the channels in this manner, the fibrous sheet is not weakened by the simple pressure members 5 which do not contact with the granular material. rlhe operation of forming the channels 'does not involve any operation on the granular grit, and the grit is not embedded in the exposed asphaltic coating in the ch/annels.

l claim:

' 1. The method of making stripl shingles which comprises applying adhesive material t0 a sheet of roofing material, forming channels in the adhesive material, depositing granular material on the adhesive material and in the channels therein, embedding the granular material on the adhesive material between the channels, removing the loose granular material from the channels, andl` cutting the sheet transversely of the channels to form strip shingles. 2. The method of making strip shingles which comprises coating a moving sheet of roofing material with a body of adhesive material, pressing the adhesive coating at separated points on the moving sheet toV form longitudinal channels therein, leaving a relatively thin coating of said material eX- posed at the base of each channel, dropping granular material onto the surface of the adhesive coating and into the channels so as to form a layer of granular material on the adhesive coating, embedding the granular material on the adhesive coating between the channels, removing the vgranular material from the channels, and severing the sheet transversely of thechannels to form strip shingles.

T3. rlhe method of making strip shingles which comprises coating a sheet of roofing material with a body of adhesive material, forming longitudinal channels inthe adhesive coating and at the same time forming ridges at the side edges of the channels, dcpositing granular material on the surface of the adhesive coating' and in the channels therein, embedding ythe granular material between the channels, removing the loosev granular material from the channels, and

cutting the sheet transversely of the chan` nels to form strip shingles.

which comprises coating a moving sheet of roofing material vwitha body of. adhesive material, pressing the adhesive coating at separated points on theJJ moving sheet to form longitudinal channels in the adhesive coating" and ridges atthe side edges of the channels, leaving a relatively thin coating exposed at the base of each channel, dropping granular material onto the surface of the adhesive coating and into the channels so as to form a layer of granular material on the adhesive coating, embedding the granular material on the adhesive coating between the channels, removing the granular material from the channels, and severing the sheet transversely of the channels to form strip shingles.

1n testimony that l claim the foregoing l hereunto affix my signature.

@RR K. OUTMAN. 

